Poisoning by electrolytic/caloric/wtr-bal agnt, undet, init

This code signifies an accidental or intentional poisoning by substances that disrupt the body's electrolyte, caloric, or water balance, where the intent (e.g., accidental, intentional self-harm, assault) is not yet determined. These agents can include diuretics, laxatives, antidiabetic medications, or excessive water intake, leading to conditions like hyponatremia, hyperkalemia, or hypoglycemia. The "initial encounter" indicates the patient is receiving active treatment for the poisoning.

Use this code when a patient presents with symptoms of poisoning due to an electrolytic, caloric, or water-balance agent, and the circumstances surrounding the exposure are unclear or undocumented at the time of the initial assessment and treatment. This is appropriate for emergency department visits or initial hospital admissions where the intent of the poisoning has not been definitively established.

• Always assign an additional code for the specific substance(s) involved, if known.
• Do not use this code if the intent of the poisoning (e.g., accidental, intentional self-harm) is clearly documented.
• Ensure the "initial encounter" seventh character is appropriate for the patient's current phase of treatment.